baber/WOPTO huggingface dataset:
Patent GB-1110835-A (GB)
Title: One component diazotype material
IPC: G03C1/54
Filed: 1966-03-11
Abstract: The invention comprises compounds of the formula <FORM:1110835/C2/1> where R1 and R2 are aralkyl groups which may be halogen substituted, X is Cl or Br, Y is an acid anion and Z is -CH2OH, -CH2CH2OH, -CH(OH)-CH3 or -CH(OH)-CH2OH, and double salts thereof with a metal salt. An example describes the preparation of N,N-dibenzylamino - 2(2 - hydroxyethoxy) - 5 - chloro-4-diazo benzene in the form of its stannic chloride double salt by reacting 4-chloro-2-nitro phenol with acetic acid to give 4-chloro-2-nitro phenol acetate, reducing this with iron powder and HCl to 4-chloro-2-acetyl-amino phenol, reacting this with 2-chloro ethanol to give 4-chloro-2-nitro (2-hydroxyethyl) phenol, removing the acetyl group with H2SO4, dibenzylating with benzyl chloride, nitrating with concentrated HNO3, reducing the nitro group to the amine and diazotizing.  The other compounds of the general formula given above may be similarly prepared.
Patent GB-694783-A (GB)
Title: Improvements in or relating to ice warning indicators
Inventor: BROOKESMITH FRANK
IPC: B64D15/20
Filed: 1950-05-03
Abstract: 694,783. Ice warning indicators. HARLEY, M. C. July 27, 1951 [May 3, 1950], No. 10966/50. Class 118 (i) [Also in Group XXXIII] An ice warning indicator particularly for use in aircraft, comprises temperature - influenced means, hygroscopically-influenced means, and means adapted to operate when the temperature is low enough, and the moisture content high enough to produce ice-forming conditions. The arrangement may consist of an electric circuit comprising a conductor having a high temperature co-efficient connected in series with a mass of absorbent material, so that under wet, low temperature conditions, sufficient current passes to operate a relay. Alternatively, a temperatureoperated switch may replace the temperature sensitive conductor.
Patent GB-950188-A (GB)
Title: Improvements in electrical vapor detector
IPC: G01N27/66
Filed: 1960-03-29
Abstract: 950,188. Cold-cathode tubes; electrode materials. GENERAL ELECTRIC CO. March 29, 1960 [May 1, 1959], No. 11018/60. Heading H1D. A gas, leak detector has a heated ion source forme@ by an ion producing ceramic semiconductor sleeve placed over a filament and surrounded by a tubular ion collector. In the Figure, the ion source-24 consists of a U-shaped filament with an ion producing sleeve fitted on each leg, the source being surrounded by an ion collector 21 in the form of a coil of wire. The turns are slightly spaced to permit the passage of the gas being detected. The gas is drawn through the housing from a probe 18 by means of a pump 85, the gas being admitted at 17 through the hollow ion collector support 3 and withdrawn at 86 through a hollow filament support 25. The legs of the filament are clamped in grooves in support blocks 55, 56 which are mounted on the supports 25, 26. The filament may be straight or in the form of a spiral instead of U-shaped, and the ceramic tubes may consist of steatite or alumina ceramic, chiefly MgO.SiO 2 , comprising alkaline earth impurities and a binder. The filament and the ion collector wire may consist of a nickelchrome alloy. The ion collector 21 may be oval in cross-section instead of circular. Suitable dimensions are given. The gas to be detected may be a halogen. A greater degree of ionization due to this gas is reflected in a greater current drawn by the ion collector.
Patent GB-735382-A (GB)
Title: Cutter for mushrooms and the like
Inventor: REID IAN GEORGE
IPC: A23N15/04
Filed: 1953-04-22
Abstract: 735,382. Mushrooms &c., destalking &c. REID, I, G., and WORRALL, W. J. June 22, 1954 [April 22, 1953], No. 11065/53. Class 28(2). Mushrooms &c. have their roots and then their stalks cut off by an operator pushing sideways the root end of a mushroom, which is held in each hand; into side gaps 3 and operating a treadle which moves side knives 8 downwards whereby each root is cut off between the lower cutting edge of a knife 8 and a co-operating lower fixed knife 4. The mushrooms are next pushed stalk first inwards and another treadle is operated to raise the knives 8 the upper edges of which co-operate with upper fixed knives 4 to cut off the stalk near the head. The first treadle pulls a pivoted deflector plate 9 down as in Fig. 1 whereby a link 10 pivots the framework of side plates 5 downwards. Each doubleedged knife 8 is fixed across a gap 3 in these plates. When the roots are cut off, they fall on the deflector plate 9 which directs the roots into one receptacle. The other tradle pivots the plate 9 upwards to deflect the cut-off stalks into another receptacle or on to a conveyer, such movement also pivoting up the plates 5 with their knives 8 to cut off the stalks. The gaps 3 are partly masked by a guard plate (20, Fig. 2, not shown) which pivots across the gap 3 by the pushing inwards of the mushrooms.
Patent GB-956682-A (GB)
Title: Improvements in or relating to circuit breakers
IPC: H01H71/46
Filed: 1961-03-27
Abstract: 956,682. Automatic circuit-breakers; tumbler switches. AIRPAX ELECTRONICS Inc. March 27, 1961 [June 22, 1960], No. 11074/61. Heading H2B. In an automatic circuit-breaker having cooperating contacts on first and second pivoted levers the first lever is by an electromagnetically releasable latch and the second lever is resilient and rotatable by a manually operated toggle mechanism which is adapted to flex the second lever in the contact closed position. As shown, both contact levers 28, 24 are pivoted at 23 to the frame 2 and carry respective contacts 29, 27. The levers are biased apart by a spring 23<SP>1</SP> on the pivot 23 and the clockwise movement of the lever 28 is normally limited by its engagement with a latch 22. The resilient lever 24 is pivotally connected at 25 to a toggle link 26 having its other end pivoted at 33 on the end of a handle 6 which has a fixed pivot 7. A compression spring 38 between a block 34 on the pivot-pin 33 and a pivoted block 35 biases the toggle links to the Fig. 1 position. When the handle 6 is moved to the Fig. 2 position the contact 27 engages the contact 29 before the toggle pivot 33 crosses the centre line between pivots 25, 7. During the final over-centre movement the lever 24 is stressed and when the movement is complete the biasing force of the lever 24 on the pivot 25 of the toggle 26, 6 is sufficient to hold the toggle over-centre against the component of the force of the spring 38 normal to the axis 25, 7. On overload the series electromagnet 11, 13 attracts a balanced pivotal armature 16 which during its movement engages a co-pivotal member 21 having an extension forming the latch 22 which releases the lever 28. The lever 28 moves clockwise reducing the stress on the lever 24 so as to allow the spring 38 to move the toggle 26, 6 over-centre and restore the switch to the Fig. 2 position. A pin 31 on the link 26 engages the end 30 of the lever 28 to reset the latch 22 and lever 28. The metal casing 45 is sealed to the switch mounting plate 1 and to terminal bushings 10 and a rubber diaphragm 8 completes the sealed enclosure.
Patent GB-565110-A (GB)
Title: Improvements in or relating to fluid heater cleaners
IPC: F28G3/16
Filed: 1943-07-08
Abstract: 565,110. Soot-blowers. BABCOCK & WILCOX, Ltd., and ZOLLER, R. E. July 8, ' 1943, No. 11091. [Class 99 (ii)] In a soot-blower having a rotatable blower tube and in which the distances through which the cleaning fluid must travel from the nozzles 'to the surfaces to be cleaned vary, the velocity of discharge from the nozzles is varied by variably throttling the cleaning fluid, so as to provide a velocity of impact more uniform than if the velocity of discharge were constant. In a blower of the retractable tube type, the tube 10 is rotated throughout its travel during the outer part of which the admission valve 7 is opened by a cam 13. The port 15 in the blower tube is wholly or partly closed in the middle part of the blowing period by an internal projection 21 on the blower tube .casing 5. In another arrangement, throttling takes place on the supply pipe side of the admission valve and is effected by a substantially balanced valve 39, Fig. 4, actuated by a cam 58 on a gear-wheel 57 which drives the blower tube. The device is applicable to a blower tube having rotary motion only. Specification 532,692 is referred to.
Patent GB-527973-A (GB)
Title: Improvements in preparation of mixed fatty acid esters of cellulose
IPC: C08B3/16
Filed: 1939-04-12
Abstract: 527,973. Cellulose esters. KODAK, Ltd. April 12, 1939, No. 11098. Convention date, April 12, 1938. [Class 2 (ii)] In a process for the preparation of cellulose acetate propionate or butyrate containing not less than 10 per cent of propionyl or butyryl, the cellulose is pre-soaked in acetic acid, propionic or butyric acid is added, the the mixture cooled to less than 60‹ F. An anhydride-free solution of sulphuric acid in propionic or butyric acid is then added and the mixture kept at 40-60‹ F. for a short time. The reaction is impelled by adding an anhydride, usually acetic, sometimes propionic or butyric, with or without more sulphuric and fatty acids. The bath should contain at least 20 per cent propionyl or butyryl group, based on total content of acyl radical. In an example, cotton linters are pre-soaked with acetic acid at 130‹ F., propionic acid added, and the mixture cooled to 50‹ F. More propionic acid and some sulphuric acid are added and the mixture kept at 50‹ F. for two hours. Finally, the reaction is impelled by adding acetic anhydride, propionic and sulphuric acids previously cooled to 0-30‹ F., and the temperature allowed to reach a maximum of 80‹ F. After two hours a clear highly viscous solution free from grain and fibres is obtained. Specifications 287,880, and 313,408, [both in Class 2 (ii)], and U.S.A. Specifications 2,026,583 and 2,150,690 are referred to.
Patent GB-627119-A (GB)
Title: A process for preparing 1.1.2-trichloroethane by the chlorination of 1.2-dichloroethane
IPC: C07C17/10
Filed: 1947-04-25
Abstract: 1.1.2-Trichloroethane is prepared by chlorinating 1.2-dichloroethane with chlorine gas in a reaction zone situated in a rectifying apparatus so that the maximum concentration of 1.1.2-trichloroethane in the vapour present is preferably less than 15 mol. per cent, e.g. 8 to 12 mol. per cent.  These conditions are obtained by using a high reflux ratio and by selecting the level at which the reaction zone is adjusted in the rectifying apparatus in conformity with the 1.1.2-trichloroethane concentrations.  Chlorination is preferably effected in the presence of chemically active rays and the 1.1.2-trichloroethane produced is substantially free from more highly chlorinated products.  In an example, the chlorination of 1.2-dichloroethane p  is effected in a rectifying apparatus consisting of a glass dish column 4 metres high, diameter 75 mms. with a steel boiler below and glass cooler on top, mercury vapour lamps being placed at levels of 2.5 and 3 metres above the bottom, 18 kgs. of a mixture consisting of 2.5 mol. per cent of 1.2-dichloroethane, 95 mol. per cent 1.1.2-trichloroethane and 2.5 mol. per cent of sym.tetrachloroethane are placed in the boiler and heated so that 40 kgms. of vapours per hour are condensed in the top cooler, dichloroethane being then pumped into the top cooler at 4.0 kgms. per hour and chlorine introduced at a level of 2 metres from the bottom of the column so that the temperature in the boiler does not fall below the boiling point of 1.1.2-trichloroethane, the process then being continued for 110 hours when the bottoms product is substantially 1.1.2-trichloroethane.
Patent GB-692389-A (GB)
Title: Improvements in and relating to devices for lifting heavy loads
IPC: B66F1/02
Filed: 1951-05-15
Abstract: 692,389. Lifting jacks. BRASELMANN. P., and BRASELMANN, E., [trading as BRASELMANN, F. [Firm of]]. May 15, 1951. [May 15, 1950 ; July 31, 1950 ; Nov. 9, 1950] No. 11246/51. Class 78 (iii). Clamping jaws 2 and 3 are connected by a rod 5 and move on a column 1, the lower jaw carries the load and the upper jaw is connected through a lever 4 to an operating lever 4b which is reciprocated to cause the load to climb the column, the jaws gripping the column alternately. Springs (i urge the jaws to the clamping position. To lower the load the lever 4b is pressed downwards so that the lever 4 presses on cam 9 and jaw 3 presses on jaw 2 to release the clamping grip on the column. In an alternative form so that a shorter column may be used the load is secured to the upper jaw and the load is lowered by inserting a lever between the lever 4 and the upper jaw. In another form, Fig. 7, the two jaws are mounted within a stirrup 11 and the load 14 is mounted on the stirrup. The lower jaw contacts a spring 13. The load may be raised either by insecting a lever between the jaws or for heavier loads a lever is pivoted to the lower jaw and contacts a roller 19 on the upper jaw. The load is lowered by inserting a lever between a cam 20 on the stirrup and a cam 21 on the upper jaw.
Patent GB-441044-A (GB)
Title: Improvements in dish washing machines
IPC: A47L15/06
Filed: 1935-04-11
Abstract: 441,044. Dish - washing machines. SCHULTZ, E. G., 72, Goudsche Ryweg, Boskoop, Holland. April 11, 1935, No. 11253. [Class 138 (i)] A machine for washing plates, dishes, and other table articles comprises a container for washing water, having a watersplashing vane-carrying shaft disposed near the bottom, and a further water - splashing vane-carrying shaft disposed in an upper part of the container, both shafts being driven externally of the container. In the construction shown, a splashing device comprising a horizontal shaft with vanes 4 is mounted near the bottom of a container, below a rack 3 containing dishes. Some of the water splashed by the vanes 4 is thrown along an inclined wall of the container and guided by a deflector 8 so that it reaches the vanes 5 of a second splashing device whereby it is thrown in an inward and downward direction over the dishes. After the dishes have been washed, hot rinsing water is supplied through pipes 9, 10.
Patent GB-387177-A (GB)
Title: Improvements in aircraft sustaining rotors
IPC: B64C27/51
Filed: 1932-04-20
Abstract: 387,177. Vibration-dampers. CIERVA AUTOGIRO CO., Ltd., Bush House, Aldwych, London. April 20, 1932, No. 11290. Convention date, June 29, 1931. [Class 108 (iii).] An aircraft sustaining rotor having a plurality of blades pivotally mounted for vertical or vertical and horizontal movements on a common rotor hub member is provided with non- resilient means for damping some or all of the pivotal blade movements which means are mounted on or adjacent to the rotor hub member. In one form, Fig. 3, the tubular spar 35 of the rotor blade is connected by a vertical pivot pin 36 with a link 32 in turn pivoted to jaws 31 formed on the rotor hub by a horizontal pivot pin 33. A casing 37 secured by screws 39 to the link contains a hydraulic damping device, vertical and horizontal sectional views of which are shown in Figs. 7, 8 respectively. Casing 37 contains a fixed baffle element comprising partition members 40 projecting from a central cylindrical part 41 and keyed by pins 44 to the casing. Pivot pin 36 extends downwardly into casing 37 and terminates in an enlarged cylindrical part 45 which seats on member 41 between upwardly extending portions of the partitions 40 and has formed on it two outwardly and downwardly extending members 46 which locate in the arcuate spaces, bounded by members 40. Parts 40, 41, 36, 45, 46 are retained by a collar 47 secured by a screwed ring 48 and flanged at 49 to provide a packing space 50. A cover-plate 53 encloses a space 52 which may be filled with oil through a hole 51 whence the oil can pass through non-return valves 54 into the working chambers. Oil leaking past member 36 is returned to space 52 by a collector groove 52a and duct 52b. Member 36, 45 comprises a control cavity 55 communicating by ducts 56, 57 with the chambers between the members 40, 46. Cavity 55 is threaded to receive a control valve 59 which is packed by means of gland 61 and comprises a part 60 projecting into a conical part of cavity 55. Part 60 thus throttles the flow of oil between the ducts 56, 57 produced by relative movement between the parts 40, 46, the degree of throttling depending upon the size of the annular orifice between the end of part 60 and the wall of the cavity 55 which can be adjusted by screwing valve 59 up or down. The upper end of pivot pin 36 is squared to receive the boss of an operating arm 63, Fig. 3. In a modification, a dashpot 86 is employed, which comprises a piston 91, Fig. 14, and cylinder 87, the piston being provided with transfer ports 94 and a non- return valve 95 which under the influence of gravity or centrifugal force permits oil to return from space f to space e on return movement of the blade after deflection. Centralizing springs 98 are fitted to engage pins 93. The dashpot may be made double-acting.
Patent GB-455222-A (GB)
Title: Driving clutches
IPC: F16D13/54
Filed: 1935-04-12
Abstract: 455,222. Clutches. CROFT, F., and CROFT, A., c/o Crofts, (Engineers), Ltd., Thornbury, Bradford, Yorkshire. April 12, 1935, No. 11299. [Class 80 (ii)] Relates to a friction cone or plate clutch of the type in which an annular wedge-surface 14b, Fig. 1, forces balls or rollers 11 into a tapering groove between members 9, 12 so that one member 9 is moved axially to bring the clutch into engagement. According to the invention, a cage such as 22 is employed to retain the balls or rollers in their engaging positions. In the form shown in Fig. 1, the presser plate 9 is urged by the balls 11 against the action of springs 10 into engagement with plates 2, 3 splined to the driving sleeve 7 and to the housing 6 on the driven shaft B. The cam sleeve 14 is axially movable by a groove 14a engaging an operating-fork and is connected by a sliding key 14b to the ring 12, which in turn is connected by a sliding key 13 to the driving shaft A. The position of the ring 12 may be adjusted by a nut 15 having serrations 15a interlocking with serrations on the ring 12. A slot 14d in the cam sleeve permits this sleeve to be held stationary while the nut 15 is rotated. In the form shown in Fig. 7, the presser plate 9 has an internal conical surface 9b and the operating sleeve 14 an externally-tapered surface 14b. The sleeve 14 is operated by a rod 19 sliding inside the shaft A and connected to an operating-collar 17 by arms 20.
Patent GB-884734-A (GB)
Title: Improvements in or relating to clocks and watches
IPC: G04C3/027
Filed: 1958-04-09
Abstract: 884,734. Clocks and watches. JAHRESUHREN-FABRIK G.m.b.H. April 9, 1958 [April 10, 1957], No. 11309/58. Class 139. In a timepiece the pendulum 1, 2, Fig. 1, carries at least two permanent magnets 3, 3<SP>1</SP> and the maintaining circuit includes a transistor 5, two exciter-driving coil combinations 4, 4<SP>1</SP>, a rectifier 6 in each of the leads from an exciter coil to the base of the transistor and a variable resistor 7 between the collector and the base of the transistor. The rectifiers prevent positive pulses derived from the movement of the magnets 3, 31 into and out of the coils 4, 4<SP>1</SP> from reaching the base of the transistor. In another embodiment the pendulum is replaced by a balance carrying four permanent magnets and the maintaining circuit is as before.
Patent GB-113065-A (GB)
Title: Method of and Apparatus for Injecting Fuel into Combustion Chambers of Internal Combustion Engines and Turbines.
Inventor: FISHER JOSEPH OTTO
IPC: F02M61/16
Filed: 1917-08-07
Abstract: 113,065. Fisher, J. O. Aug. 7, 1917. Cylinders, pipes for and shape of ports of. - Liquid or gaseous fuel which may contain particles of solid fuel in suspension may be circulated continuously past the injection valves which are opened at intervals to allow some of the stream of fuel to enter the cylinder and the velocity of the stream is increased near the valves. The circuit may contain a heating coil; it also contains a circulating pump and a branch through which new fuel is supplied. Water and comburants may be similarly supplied to the combustion chambers of engines and turbines. Fig. 3 shows the end of an injection nozzle with the valve 20 open. The fuel passes down the passage 11 to the annular chamber 12 and thence through tangential passages 7 which give it a whirling motion in the chamber 6 to increase its velocity. Hence it either passes through the orifice 4 or returns to the circulating pumps through grooves 22, 25, 26 in the valve spindle and a passage 15 in the casing. In the modified nozzle, Fig. 8, the fuel passes through longitudinal passages 61 in the valve spindle to the outlet 4 and back through the passage 64 in the casing.
Patent GB-113769-A (GB)
IPC: C01B33/18
Abstract: Silica in a light voluminous form suitable as an electric fuse-filler, as described in Specification 8821/14, [Class 38 (i), Electric couplings &c.], is made by adding a solution of an alkali silicate to a solution of an ammonium salt such as the chloride, bromide, nitrate, sulphate, or acetate, boiling to decompose the precipitated ammonium silicate, separating the silica, washing, and calcining it at 100-150 DEG  C., and finally sifting through a 20-40 mesh sieve.  Alternatively, the ammonium silicate my be filtered off and washed, and then heated to about 150 DEG  C.
Patent GB-1446962-A (GB)
Title: Stabilised aromatic polyetherketone compsoitions
IPC: C08L71/00
Filed: 1974-03-14
Abstract: 1446962 Aromatic polyetherketones IMPERIAL CHEMICAL INDUSTRIES Ltd 20 Feb 1975 [14 March 1974 (2)] 11439/74 and 11440/74 Heading C3R To stabilize or reduce the melt viscosity of (i) an aromatic polyetherketone having units in which Ar is an aromatic radical, at least some of the Ar units containing ether linkages, and in which up to 25% of the -CO-groups may be replaced by -SO 2 - groups, there is added (ii) an organic phosphorus compound of formula where n is 0 or 1 and each Q<SP>1</SP>, Q<SP>11</SP> and Q<SP>111</SP> is -R or OR, where R is a hydrocarbon radical, the amount of the phosphorus compound being from 0À01 to 4% by weight of the total composition. In examples a polymer having and is mixed with tri-(nonyl phenyl) phosphite and triphenyl phosphate and a polymer having is mixed with triphenyl phosphate.
Patent GB-719112-A (GB)
Title: An improved foundation arrangement for water seal gas holders and other large containers
IPC: E02D27/38
Filed: 1952-05-07
Abstract: 719,112. Foundations for gasholders. KLONNE, M., and KLONNE, A. May 7, 1952 [May 7, 1951; Sept. 5, 1951], No. 11561/52. Class 20 (2) In water-seat gas holders and other large containers the central part of the floor is mounted on the ground and the walls are mounted on peripheral foundations 7 by means of a resilient grating which may comprise radial girders 3 which can be raised by jacks 5 to restore the walls 1, 2 to the vertical from which subsidence has displaced them. The girders 3 rest on removable foundation crowns 6. Workmen have access to effect the raising operations by a recess 8. The girders may be strengthened by butt straps on plates at 10. In a modification the grating may be composed of concentric annular girders. The girders 3, Fig. 7, may be arranged obliquely to the radii of a circular container and may be strengthened by girders 3' in the outer zone.